User profiles for H. Koizumi

Hiroyasu Koizumi

University of Tsukuba, Associate Prof.
Verified email at u.tsukuba.ac.jp
Cited by 2629

Pachychoroid disease

CMG Cheung, WK Lee, H Koizumi, K Dansingani… - Eye, 2019 - nature.com
… OCTA can readily detect the presence of neovascularization (h). Features of PCV/AT1
overlap significantly with PCN, with the additional feature of aneurysms. Although indocyanine …

[HTML][HTML] Space micropropulsion systems for Cubesats and small satellites: From proximate targets to furthermost frontiers

…, RW Boswell, C Charles, H Koizumi… - Applied Physics …, 2018 - pubs.aip.org
Rapid evolution of miniaturized, automatic, robotized, function-centered devices has
redefined space technology, bringing closer the realization of most ambitious interplanetary …

The technological and commercial expansion of electric propulsion

D Lev, RM Myers, KM Lemmer, J Kolbeck, H Koizumi… - Acta Astronautica, 2019 - Elsevier
The use of Electric Propulsion (EP) on satellites for commercial, defense, and space science
missions has been increasing in recent decades, from the first successful operation in 1964 …

Enhanced depth imaging spectral-domain optical coherence tomography

RF Spaide, H Koizumi, MC Pozonni - American journal of ophthalmology, 2008 - Elsevier
PURPOSE: To describe a method to obtain images of the choroid using conventional
spectral-domain (SD) optical coherence tomography (OCT) and to evaluate choroidal thickness …

The Japanese space gravitational wave antenna: DECIGO

…, S Kobayashi, K Kohri, H Koizumi… - … and Quantum Gravity, 2011 - iopscience.iop.org
The objectives of the DECi-hertz Interferometer Gravitational Wave Observatory (DECIGO)
are to open a new window of observation for gravitational wave astronomy and to obtain …

[BOOK][B] The Geometric phase in quantum systems: foundations, mathematical concepts, and applications in molecular and condensed matter physics

A Böhm, A Mostafazadeh, H Koizumi, Q Niu… - 2003 - Springer
Aimed at graduate physics and chemistry students, this is the first comprehensive monograph
covering the concept of the geometric phase in quantum physics from its mathematical …

Spatial and temporal analysis of human motor activity using noninvasive NIR topography

…, Y Ito, E Watanabe, Y Mayanagi, H Koizumi - Medical …, 1995 - Wiley Online Library
The effect of motor activity on the left fronto‐central region of the human brain was analyzed
spatially and temporally by using noninvasive near‐infrared light (NIR) topography. The …

Sounds and silence: an optical topography study of language recognition at birth

…, G Dehaene-Lambertz, H Koizumi… - Proceedings of the …, 2003 - National Acad Sciences
Does the neonate's brain have left hemisphere (LH) dominance for speech? Twelve full-term
neonates participated in an optical topography study designed to assess whether the …

Room-temperature miscibility gap in LixFePO4

A Yamada, H Koizumi, S Nishimura, N Sonoyama… - Nature materials, 2006 - nature.com
… 6 h, followed by preheating at 300 ∘ C for 3 h. The mixture was thoroughly mixed in a ball
mill again for 1 h … synthesized by sintering at 700 ∘ C for 6 h under a purified Ar gas flow. For …

Adaptation of HIV-1 to human leukocyte antigen class I

…, H Gatanaga, M Fujiwara, A Hachiya, H Koizumi… - Nature, 2009 - nature.com
The rapid and extensive spread of the human immunodeficiency virus (HIV) epidemic provides
a rare opportunity to witness host–pathogen co-evolution involving humans. A focal point …